Comparison

Secret Notes vs CellAlert

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Secret Notes

Features
Read full description

Trove is where your private thoughts live behind real encryption. Every note is locked with AES-256 — the same standard trusted by security professionals. Your password is never stored, never synced, never seen by anyone. It lives only in your head. Forget it, and not even we can open the note. That is the whole point. WHY TROVE • AES-256 encryption with 600,000-round key strengthening • Your password is never saved to disk, to iCloud, or to our servers • The note list and encrypted text stay visible without a password — decryption happens only in memory, only when you ask • No account, no sign-up, no tracking, no ads ONE ENCRYPTED LOCKBOX FOR EVERYTHING Bank details, passwords, a private journal, a secret diary, login codes, confidential ideas, a quick brain dump — keep your whole stash in one secure vault. FEATURES • Encrypted notes, private journal and secure diary in one app • Voice dictation — speak your notes, transcribed on-device (audio never leaves your iPhone) • Color tags to organize and archive your notes • Optional iCloud sync — your encrypted vault follows you across iPhones and survives reinstalls • Local-only mode if you prefer nothing ever leaves the device • Share an encrypted note with a friend over any channel — only someone with the password can open it • Search by title or date • Clean, fast, forced dark mode SHARING Send an encrypted note to anyone — over Messages, Mail, AirDrop, any channel. Share the password separately... Only the person who knows it can open the note, so it stays safe even if the channel is not... PRIVACY BY DESIGN Trove cannot read your notes. There is no backdoor, no recovery, no hint. Strong encryption means only you hold the key. We collect nothing about your content — what you write stays yours. DISCLAIMER Application cannot add photos, videos to notes by decision of developer. Trove is for text only — by design. Encrypted media is intentionally not supported to keep the app safe and simple PREMIUM Unlock unlimited notes, sharing, importing and more: • Weekly or Monthly plan • 3-day free trial for new subscribers • Cancel anytime in your Apple ID settings Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your Apple ID account is charged for renewal within 24 hours prior to the end of the current period. Any unused portion of a free trial is forfeited when you purchase a subscription. Manage or cancel your subscription in your Apple ID account settings after purchase. Your secrets deserve a real lock. Keep them in Trove. Privacy Policy: https://lukematpyt.github.io/securenotes-legal/privacy/ Terms of Use: https://lukematpyt.github.io/securenotes-legal/terms/ Support: https://lukematpyt.github.io/securenotes-legal/support/

About

CellAlert

Features
Read full description

CellAlert is the companion app for the CellAlert deadline-monitoring service. A CellAlert account is required to use this app (free to create at cellalert.app). Important deadlines often slumber in a spreadsheet and only surface once it's too late: a missed inspection, an expired certificate, a forgotten contract renewal. CellAlert turns those dates into monitored deadlines and reminds you in time — by email, in your calendar and in this app. With the app your deadlines are always with you, on the go. How the app works with CellAlert: • Deadlines are created in the CellAlert service from your spreadsheets (Excel, LibreOffice, FileMaker). • This app shows them on mobile: today, this week, overdue — and reminds you in time. • Acknowledge and review the history — audit-ready. WHAT CELLALERT IS MADE FOR • Inspections & maintenance: safety checks, servicing, equipment tests, maintenance plans. • Certificates & licenses: keep expiry dates in view before they lapse. • Contracts: renewal and cancellation deadlines on your radar in time. • Compliance & audit: re-certification, calibration cycles, proof obligations. APP FEATURES • Reminders & calendar — push/email plus calendar subscription for Outlook, Google and Apple. • Priority & escalation — critical deadlines remind daily until someone acknowledges. • Recurring deadlines, filters (today, this week, overdue) and a matrix view. • Team — deadlines belong to the organization, with assigned responsibilities. Hosted in Germany, GDPR-compliant. Only the deadline is stored — never your file. Sign in with your CellAlert account — never miss a deadline again.

Screenshots

Secret Notes3 screens
CellAlert4 screens

Verdict

The call

The clearest difference is in-app purchases: CellAlert at none against Secret Notes's 2. CellAlert also leads on iOS requirement (13.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Secret Notes sells 2 in-app purchases, starting at $2.99 per 7 days. CellAlert asks for nothing beyond the download.

Scorecard2 real differences Ā· 4 level
Secret Notes versus CellAlert: the parameters behind the verdict, then further details
ParameterSecret NotesCellAlert
PriceFreeFree
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size9 MB23 MB
Age rating4+4+
DeveloperLukasz MacczakJonas Hoettler

In-app purchases

2 purchases

Secret Notes

Subscriptions2
  • Secure Notes - Weekly$2.997 Days
  • SecureNotes Monthly$9.991 Month
None

CellAlert

No in-app purchases

Questions

Is Secret Notes free?
Secret Notes is free to download, with in-app purchases available.
Is CellAlert free?
CellAlert is free to download, with no in-app purchases.
Do Secret Notes or CellAlert have ads?
Neither Secret Notes nor CellAlert shows ads.

Other comparisons